QTJTCalculator
QT Interval Calculator
About
This educational tool simplifies QTc and JTc interpretation by automatically converting heart rate and RR intervals. It applies various correction methods to assess repolarization, especially when QRS duration is prolonged. The app provides clear results and formula references for educational purposes.
What's New in QTJTCalculator
1.1
April 28, 2026
Minor Bug Fixes
Developer apps
FAQ
What is QTJTCalculator used for?
QTJTCalculator is an educational tool designed to help users interpret QTc and JTc intervals on ECGs. It specifically aids in assessing repolarization when QRS duration may influence the results.
What correction methods does QTJTCalculator use?
QTJTCalculator employs several correction methods including Hodges, Framingham, Bogossian (for QTm adjustment), and Rautaharju bivariate correction. It avoids the Bazett correction, which can be less accurate at certain heart rates.
Can QTJTCalculator be used for medical diagnosis?
No, QTJTCalculator is strictly for educational purposes. It is not a medical device and should not be used for diagnosis, treatment decisions, or patient care. All results require interpretation within a clinical context.
How does QTJTCalculator handle QRS duration?
The app allows users to input QRS duration and applies specific adjustments like Bogossian QTm and Rautaharju bivariate correction when the QRS is widened (≥ 110 ms). It also calculates JTc using Hodges and Framingham corrections in these cases.
What information do I need to enter into QTJTCalculator?
You need to enter the patient's sex, the measured QT interval, and either the heart rate or the RR interval. Optionally, you can also input the QRS duration for more advanced calculations.
Is QTJTCalculator available on Android devices?
Based on the provided data, QTJTCalculator is currently supported on iPhone devices. Information regarding Android availability is not specified.
How often is QTJTCalculator updated?
The app was last updated on April 28, 2026, with version 1.1. This indicates a recent update, suggesting ongoing development and maintenance.
What is the user feedback on QTJTCalculator?
QTJTCalculator has received a perfect rating of 5.0 stars from 1 review, indicating a highly positive initial user reception.